package com.itheima.controller;

import com.itheima.domain.Book;
import com.itheima.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;

// TODO 3.1 设置当前控制器为REST风格的控制器类，开发对应的CRUD功能，并调用对应的业务层接口
@RestController
@RequestMapping("/books")
public class BookController {
    @Autowired
    private BookService bookService;

    //json参数
    @PostMapping
    public Result save(@RequestBody Book book) {
        boolean save = bookService.save(book);
        return new Result(save? Code.SAVE_OK:Code.SAVE_ERR,save) ;
    }

    //路径参数
    @DeleteMapping("/{id}")
    public Result deleteById(@PathVariable Integer id) {
         boolean delete = bookService.delete(id);
        return new Result(delete? Code.DELETE_OK:Code.DELETE_ERR,delete) ;
    }

    //json参数
    @PutMapping
    public Result update(@RequestBody Book book) {
        boolean update = bookService.update(book);
        return new Result(update? Code.UPDATE_OK:Code.UPDATE_ERR,update) ;
    }

    //路径参数
    @GetMapping("/{id}")
    public Result getById(@PathVariable Integer id) {
        Book book = bookService.getById(id);
        Integer code=book!=null?Code.GET_OK:Code.GET_ERR;
        String msg=book!=null?"":"数据查询失败,请重试";
        return new Result(code,book,msg);
    }

    @GetMapping
    public Result getAll() {
        List<Book> booklist = bookService.getAll();
        Integer code=booklist!=null?Code.GET_OK:Code.GET_ERR;
        String msg=booklist!=null?"":"数据查询失败,请重试";
        return new Result(code,booklist,msg);
    }

}














